L I N E X

A vertical line array module with exceptional qualities. In any situation where one box just is not loud enough or can‘t deliver the desired coverage, Linex™ will most likely offer both: Spectacular loudness and perfect coverage.

Flight case of 80 x 120 floor space are available for six cabinets to facilitate easy truck pack matched to Euro container and truck standards.

Linex™ is an ultra compact module constructed of proprietary carbon fibre composite with an unmatched stiffness to weight ratio. One Linex™ enclosure weighs only 40 kg. The rigidity of the complex cabinet shape is furthermore enhanced by multiple, a-rhythmic reinforcement ribs and bracings.

Minimized horizontal dimensions and an appropriate time offset guarantee a smooth transition between the three exits at cross-over frequencies and therefore a constant horizontal coverage angle.

Two ”side firing” 12 inch woofers emulate a single low frequency source, in the enclosure, which has a 62 Hz bass reflex tuning. This configuration endows Linex™ with an impressive bass response that allow all musical information to be reproduced.

Linex™ will almost exclusively be used as multiple-enclosure rigs. Consequentially most, if not all, arguments for built-in amplification are invalid. In fact the "power-packing-density" of loudspeaker-chassis already generates a lot of heat. Thus adding even minimal heat-generating power-amplifiers would be prohibitive. Therefore, unlike all other SOUND PROJECTS systems, Linex™ is not available as a self-powered cabinet.

Self explanatory, aluminium alloy, rigging hardware allows safe and very fast assembly of rigs up to 24 units per hang. Enclosure angles up to 6 degrees are possible without wave-front break-ups.

Specs

L I N E X

The sound reinforcement system shall hold two 1.4” HF drivers, each on a horn with a horizontal dispersion of 90 degrees and a vertical dispersion of 2.5 degrees, four low-weight neodymium 6.5” drivers and two low-weight neodymium 12-inch drivers. The maximum peak output of the total system shall be 144dB at 1m. The syste¬m shall have a 60Hz-20kHz frequency range. The system shall have a 90 degrees horizontal and 6 degrees vertical coverage angle.

The cabinet shall be constructed of carbon-fiber composite, covered by a protective polyurethane coating. The total system weight shall be 40kg only.

The system shall be a 3-way / 4-channel driven module within an array of sound reinforcement systems.

The system shall have a software prediction tool to determine the angles between adjacent cabinets and the settings for the processing unit.

Acoustical specifications:

- Drivers:

LF1 Transducer (pin 1) 12"

LF2 Transducer (pin 2) 12"

MF Transducer (pin 3) 4 x 6,5"

HF Transducer (pin 4) 2 x 1.5" (3"diaphragm)

- Freq. response: 65Hz-18kHz

- Max. peak SPL @1m: 144dB c.f. 2 (6 dB)

- Coverage angle: 90H x 6V Degrees

Electrical specifications:

LF1 Rec. AMP Power - 1200W @ 8ohm

LF2 Rec. AMP Power - 1200W @ 8ohm

MF Rec. AMP Power - 600W @ 8ohm

HF Rec. AMP Power - 600W @ 8ohm

Sensitivity (LF/MF/HF) - 98/106/115dB(1W@1m)

Additional descriptive data:

- Cabinet construction: carbon fiber composite

- Finish: PU coating

- Weight: 40 kg

- Size WxHxD (mm): 600x345x560

- Rigging points: Fully Integrated Easy-rig Flying System.

- IP rating: IP 54

- Audio Connectors:

2 x Neutrik NL8 – daisy chained

pin 1 - LF1 @ 8ohm

pin 2 - LF2 @ 8ohm

pin 3 - MF @ 8ohm

pin 4 - HF @ 16ohm

- Max. operating temp.: -10 to 40 C ambient

Technical specs for a 4 cabinet flat array:

System: 4 x Linex™

Frequency response: 65Hz - 18kHz

Cont. SPL (AES standard): 145 dB @ 1m

Technical specs for a 4 cabinets curved array:

System: 4 x Linex™

Frequency response: 65Hz - 18 kHz

Cont. SPL (AES standard):142 dB @ 1m

Specifications subject to change without notice

Gallery

L I N E X

Downloads

L I N E X

DreamLine Landing in Scandinavia

Norway, The Gand Church is a large church in Sandnes, near Stavanger. When the church was completed just over 25 years ago, it’s symbolic architecture (for many people it looks like a ski jump) was considered extremely innovative. The 850 seater venue is used both as house of worship and for cultural events. Sound Projects’ agent for Norway PA Produksjoner (PAP) is responsible for the newly installed sound reinforcement system based on the Sound Projects line-array-in-one-box Dreamline system.

As the church is used more and more for a wide variety of events, from normal Sunday services to rock concerts, it was time to exchange the existing system. In search of the new sound system, first copies of a range of different systems were made on a one to one scale, to see which would fit best from a visual point of view.

Jan Olav Sandsmark (m.d. PAP): “Amongst other larger PA companies in the Stavanger region, the church contacted us for an alternative to the existing system. As in everyday life, there were many contradictory demands to be met: the system had to enhance intelligibility when used with a lapel microphone in conventional worship services. On the other hand immaculate reproduction of gospel rock bands was desired. Additionally the new system had to be able to handle all the different events to be held in the church. And last but not least the system should fit in the church from an esthetical point of view. From the two potential systems considered, mockups were made and rigged up. Everyone was in title of an opinion, from the administration to the bishop. Immediately the Dreamline stood out as being optically the best.” During the actual demo of the system the technical staff of the Gand Church tested the system a few days with and without PAP. They were very impressed with the performance of the Dreamlines and the choice was easily made.

Mangar Gardum (technical manager Gand Church): “The system that suited our budget and demands was Dreamline. It gives the church an even coverage from front to back and we can use the system for all the kind of events that we have in the church. Even a technician of one of the competitors in the demo was stunned when doing a job here in the church.

Tailor-made

Based on the parameters of the venue, Sound Projects technicians configured the Dreamlines individually to obtain the perfect sound for the auditorium. To integrate the system fully into the Gand Church, the Dreamlines were delivered in the PMS color of the interior of the church. Gardum: “In the beginning some people had to get used to the quite large speakers, but they grow on you. And now you don’t even think about them, they are a part of the design of the room.”

Kooijmans Audio expands Linex Inventory

Dutch based hire company Kooijmans Audio, one of the pioneers in using Sound Projects‘ Linex line array systems, currently reports the extension of their Linex inventory to a large scale rig of 32 pieces enabling their rental division to take up even larger events or splitting up the total stock for use at several venues simultaneous.

Adrie Kooijmans (MD) says “Although in the beginning we had our doubts about the necessity of line-array systems in our rental division, because we already did many medium sized venues with our SP4 rigs, we now come to believe that with Linex we can go even a step further. Ever since we‘ve seen an incredible increase in turnover of our medium to large-scale audio rental activities over the past two years. With a second rig of Linex we‘re now able to do both large scale projects and multiple small to medium venues at once.”

With the summer-festival season at the front door, and their rental schedule filling in fast past, the need for the expansion was unavoidable. The rapidly growing rental division of Kooijmans Audio already used Linex for 4 years now and swiftly adapted to the line array standard at the early beginnings. Due to the systems versatility and capacity to fulfil large-scale performances the company was able to use Linex in a large range of projects.

Bea van Opijnen, one of the female roadies at Kooijmans Audio, expresses her enthusiasm: “In most situations Linex turns out to be a system that can be flown without the use of muscle power at all! With the integrated rigging already positioned at the right angle of each adjacent cabinet Linex simply is lifted out of its flightcase per rig of three cabinets. The subsequent rig is attached at the back of the cabinet and with the tip of a finger one can connect the front-end after it is being lifted in position.”

The new stock comprises 32 Linex systems, twelve SP2-10s, 20 SP2-FMs, 14 SP4-Diamonds, 18 SP4-15s, 10 SP2s any many more X-acts and SP3s. Kooijmans Audio is also responsible for many installations of Sound Projects in the Dordrecht area.

Linex installed in prestigious Eurogress

Eurogress Aachen is one of Germany’s most impressive international congress centres. As a part of a total renovation also the sound reinforcement system for the multiplex's main venue was upgraded to a Sound Projects Linex array system.
Eurogress Aachen is a multipurpose centre with some 26 halls and conference rooms - its location in Aachen, in the middle of the so-called 'Euro-triangle' is attractive to both clients and audiences from Germany, Holland and Belgium. The centre was built in 1977, but since 1997 the exploitation company Eurogress Aachen has invested an average 3 to 10 Million euros per year in the modernisation of the building which is owned by the city of Aachen. With some 300 events per year (congresses, trade fairs, concerts) Eurogress has a total capacity of 3500 people. Flagship venue is the 'Europa Saal', offering a capacity of 2500 (standing) or 1800 seated. The three way split stage has a continuous variable height and can be lowered down to floor level, to give place to an additional 200 more seats.

Axel Dresbach is Eurogress' technical manager and responsible for the upgrading of the Europa Saal - the venue hosts a huge mix of events (some 10 per month) from carnival shows, stand up comedy during the first two months of the year, congresses (February-June) and concerts towards the end of each year. "After the summer holiday, we tie in with touring schedules of international artists, alongside a number of classical concerts." explains Dresbach, "To facilitate classical concerts, the Europa Saal has a relative long reverb time especially in the low bass region. The shape of the venue measures 40 m deep by 30 m wide. This makes it not an easy place for amplified sound. A precisely controlled and coherent dispersion of the sound system is essential to cover the whole venue, including the under the balcony seats, without hitting the walls. This is where most systems in the Europa Saal failed, resulting in extra reverberation and reduced speech intelligibility and musical definition. Imperative qualities for congresses and modern music that depend heavily on amplification".

In search for a replacement of the existing D&B sound system with C4 and C7 cabinets, Dresbach commissioned the Aachen-based rental company TLAC to supply a system combining good dispersion with perfect speech intelligibility. "The system we rented several times during the last three years was a Sound Projects Linex array," recalls Dresbach, "and that's what inspired us to go ahead with Sound Projects for the refurbishment of the installation at the Europa Saal." Sound Projects supplied a number of different configurations for tests in the Europa Saal with various events to determine the optimal layout and the number and type of cabinets to be used. "Our final choice was the combination of eight Linex array system speakers on each side with 12 SP18 subs," Dresbach explains. "In an attempt to reduce low end reverberation, Jan (Slooter, MD of Sound Projects) came with the idea to fly the subs as a centre cluster, and electronically adapt the shape of the subs by delaying the lower cabinets so that there is an angle from the sub cabinets pointing down from the ceiling."
Apart from the flown configuration, the SP18 speakers can also be used in more traditional set ups like behind the line array speakers or on the floor in front of the stage. "This allows us to tailor the equipment to our clients' needs - when we have a congress or show with tables in the direct vicinity of the stage, the flying subs are the perfect solution." Dresbach enthuses.
The system is steered by a Yamaha DM 2000 digital console (72 in/60 out) which also serves as central distribution network for the whole congress building - equipped with extra analog/digital converters, the console fits the multifunctional aspect of the Eurogress. In the Europa venue, the stage has an integrated monitor system, that can also be used as front fill speakers. "For this purpose we are now testing the Sound Projects X-act monitors." adds Dresbach.

After a testing period, the new Sound Projects system recently became operational and is now rented with the venue, either as basic system (comprising the Linex array and console), with extras like (wireless) microphones, SP18 sub woofers, monitors, etc or as a package system. Dresbach claims that rental rates for the equipment are very attractive, together with the fact that the system is tailor made for the hall. "The in-house system is very often used; usually, touring productions have their own equipment along, but because the venue is a little particular they prefer the Linex system - bands are quite happy to see that we have a system that fits the room and its acoustics so perfectly. It's a big step forward because more and more productions make use of the system."

NCH Dublin installs Linex

For the third time in a row Dublin’s National Concert Hall (NCH) has opted for a Sound Projects sound reinforcement system. The new configuration, primarily Linex line array, gives the venue access possibilities to wider programming elements. It is the first such installation of its kind in Ireland or England and among the most advanced configurations in concert halls today.

Sound Projects entered the NCH in 1997 when the Dutch audio manufacturer built and supplied a custom made centre cluster, which was later replaced by eight Sound Projects SP-2 active cabinets.

When NCH’s management decided to replace the existing sound equipment, chief sound engineer Paul Kohlmann organised a ‘shoot out’ as part of a European tender bid. Alongside Sound Projects, four other major sound equipment manufacturers were invited for on-site comparative testing. “We went through a very thorough process,” says Kohlmann, “and asked independent audio consultant Peter Mapp to attend the testing; in particular to measure the STI values, the coverage and gauge the intelligibility of each system configuration.”

Audio International, Sound Projects distributor in the UK and Ireland, together with engineers from the Dutch manufacturer, planned the job well ahead when they were given a time-scale to install the system. The problem was that, because the Irish National Symphony Orchestra is rehearsing there every day, with different shows at night, the engineers had to work between 10.30pm and 8 in the morning which was quite tiring but very productive.

The installed configuration consists of a Sound Projects Linex clustered 10-cabinet Line Array facing forward, with 4 SP 4 Linex speakers facing the rear balcony and one facing each of the side balconies. Each of the Linex Carbon Fibre Composite cabinets contain, 2 x 12”LF, 4 x 6.5”MF and 2 x 3’HF transducers.

Stereo imaging is made possible by the addition of eight SP-2 and four X-Act active loudspeakers. A remotely controlled LCR configuration is also possible. The system is completed with 6 x Sound Projects Gluon front fills and 2 x Sound Projects SP-215 and 2 x SP-415 Active Bass Bins offering a total output of more than 32KW.

Paul Kohlmann: “Not only did Linex come out best with intelligibility, the streamlined design of the system was also very important, just like the compact size. The new system holds maximum flexibility for touring orchestras or bands, and reduces turnaround time drastically.” Consultant Peter Mapp is also very satisfied with the outcome: “The Linex installation fully matched our expectations and moreover our requirements.”

It was the Branford Marsalis jazz quartet who ‘inaugurated’ the National Concert Hall’s new Linex amplification system on March 1st – since then, productions at the NCH met with enthusiastic reactions to sound and acoustics from audience and media.

Prestigious DAPZ choses Linex

After an extensive, difficult and time consuming “demo” process looking for the best sound system available for their 2000 seat main concert hall, the prestigious Dr. Anton Philpszaal (DAPZ) opted for a Sound Projects Linex sound reinforcement system.

The DAPZ, located in the centre of The Hague, is one of the most famous venues in the Netherlands. The modern concert hall, known for its very distinct architecture, also serves as home-base for the just celebrated 100 year old, Residential Orchestra. Most of the DAPZ’s programme was classical music.

When the DAPZ management decided to broaden the musical horizon, the venue’s acoustic characteristics resulted in rather poor sound quality, once reinforced, and met with criticism from the audience. This created the urge to search for a sophisticated sound system that can cater to the wide range of events that the theater is open to.

It was in-house sound engineer Erik Schurman who was assigned to solve the problem and to put together a tailor made configuration for the DAPZ, reforming the classical concert venue into a dry sounding ‘rock temple’ without substantial adaptation or renovation of the building.

With this in mind, Schurman organised a number of listening sessions, rehearsals and try outs with a wide range of sound amplification systems – eventually, Schurman compared seven of the most respected brands and after thorough testing, decided for a Sound Projects Linex FOH system. “Initially I didn’t have Linex on my shortlist,” admits Schurman, “But it were my colleagues sound engineers from other venues that persuaded me to host a demo session in the DAPZ. I wanted to avoid any favouritism or “preset problems” and took the time to get accustomed to each of the sound systems. All the systems were left in the theatre, rigged, hung, tested for several days by Schurman without time pressure, disturbance, etc. Most of the configurations offered excellent dispersion of the sound, two brands excelled in terms of stability and sound reproduction. It were the live sessions with the individual sets that made me decide in favour of the compact Sound Project Linex line array system.”
The final DAPZ’s FOH system consists of six flown Sound Projects Linex SP-20 array loudspeaker modules and two Linex Sub SP2-15 bass systems on each side of the venue, powered by 14 SP 2600 amplifiers. Two SP 4-15 subs and two SP4 Diamond speakers are used as optional front fills.

DAPZ has just another premiere. It is the first venue to take delivery of 8 brand new SOUND PROJECTS Gluon™ multi-purpose cabinets. Eric Schurman: “the Gluons are very functional, smooth sounding and are mostly used as spot-fill to brighten up the sound in the first rows. I find them a perfect match with the main FOH system.

According to Schurman, “There are a lot of misrepresentations nowadays regarding the quality and performance of sound systems. But, I believe that there are only a `very special few’ out there that can `walk their talk’. Having a Sound Projects system in our theatre is testimony enough of their inclusion into that `very special few’. A stand out! ”

PA Produksjoner goes for Linex

Norway. SOUND PROJECTS announces that hire company PA Produksjoner, in short PAP, with two Norwegian departments (Stavanger and Bergen) invested in 24 Linex systems.

After thorough research PAP invited 6 different brands to bring their line-array system to the Kongeparken Amfi theatre in Stavanger for the final testing. Jan Olav Sandsmark (managing director of PAP): "We rigged up 5 different systems in one whole day and tested the next day. We were not extremely happy with any of the systems, until the SOUND PROJECTS team came along and rigged up the Linex system in 9 minutes and blew our mind! Not only the easy rigging and the lightweight made us decide for SOUND PROJECTS. The clear, good sound settled the matter. We didn't have any doubts about which sound system was the best. Ever since we have the Linex systems in our warehouse it is constantly rented out. It is so easy to work with, that even our lighting technician has rigged it on his own and managed perfectly!"

In the beginning of July PAP used their Linex system in Holmerkollen, Oslo, for a bras band Festival where all the brass bands from Norway were lined up, amongst them Norway's pop king Morten Abel. There were over 15.000 people attending the festival.

Linex flies beyond the arctic

Once upon a time, up in the very north of Europe, the Norwegian (Lap) hire company Lydfiksern heard about the SOUND PROJECTS line-array Linex. The enthusiastic information made them curious. The internet gave more information and made the company decide to order a set of 12 Linex cabinets, without even having heard the system at all!

Thomas Mikarlsen (MD): “We purchased Linex because we heard fantastic reports from users in Norway. The weight and efficiency suited our needs. We found competing systems to have twice it's weight and size. People we trust regarded Linex as a better sounding system. Easy setup was important too. We had never worked with any SOUND PROJECYS system before, and regret that now!”

“The first concert we did with Linex was a jazz concert of the famous Norwegian quartet Tore Brunborg. Because the height of the venue was limited we could only fly three Linexes per side. This was no problem; we got perfect coverage from the suggested SPArC settings (the SOUND PROJECTS line-array calculator) . After the concert we played some CDs through the system and it was noticeable how well the sound did cut through even at very low levels.

We are looking forward to the following weeks, when our full Linex system will be put to far bigger tasks, as we will supply PA for national acts Wig Wam, Mira Craig and Mari Boine to name a few.”

New AMPs distributed

The new SOUND PROJECTS Sigma Amps SP2600 and SP4600 introduced in January are received with positive criticism all around.

Adrie Kooijmans: "If you ask me what my findings are after working with the Sigma Amps for a few months, I immediately feel the daily bliss of the light weight. Especially if you need racks full, it makes a hell of a difference! You get a lot of power for a little weight. The amps always work and need hardly any care. And finally aesthetically I find them striking. Of course this should not be important, but the eye has its claims too!"

All the above dutch based companies use similar amprack modules to simplify exchange of their line-array systems amongst eachother.

CR Showequipment next in line for Linex

Dutch hire company Rombouts Showequipment placed an order for an impressive rig of SOUND PROJECTS line array Linex. On October 12th last, the first 32 Linex systems were delivered. That was only just in time to prepare transport cases and amp-racks. Because twelve were booked the same day by Tom O'Brian, front of house engineer of the legendary folk group the Dubliners for a gig in the beautiful Amsterdam Concertgebouw. An additional system was put up at the two day Kraanpop festival hosting a selection of the most famous DJ's and performers of Dutch tongue songs.

Rombouts: "Linex is rapidly becoming an accepted standard in our country. End of this summer, when we found out that Linex rigs were used in Switzerland for concerts with Toto, Europe and Status Quo, we became curious. Next thing we heard was that in Germany a Linex rig was used in a heavy metal festival with bands like Slib Not and Monster Magnet. But also for a concert of jazz giant Joe Zawinul, the founding father of the legendary Weather Report. Now we were convinced that the market had accepted Linex for all types of work, even if the system was very new. So we conducted our own comprehensive, comparative tests on the logistic and ergonomic qualities of this Sound Projects system."

ISO 9001

Rombouts Showequipment is the first and up till now the only hire company in The Netherlands with an ISO 9001:2000 certification. Rombouts: "It confirms that we are rather peculiar in our organization. Because we do many different events, from large sports and dance events to fashion shows and theatre productions, sound quality or sound power alone would not do. We need an easy to handle and safe line array. After trying Linex out in various situations we were convinced it would be a welcome replenishment of our current stock."

Atlantic invests in Linex rig

Amersfoort. Like most hire companies the Dutch company Atlantic Productions knew it was time to invest in a line-array system. But nowadays this is not such a simple choice, for there are so many suppliers. After extensive testing the company has chosen and invested in 12 SOUND PROJECTS Linex systems.

One of Atlantic Productions' larger clients is the City of Amersfoort, for whom the company does most large events and festivals. This was an important reason why the company was looking for a line-array system. Chris Polhout (MD): "Because we often do events in the centre of the city, we have to deal with stringent rules and laws regarding the maximum allowable SPL at adjacent buildings and/or houses. A great benefit of line-arrays is that it is possible to beam the sound precisely where you want it. We have tried out the Linex system in many of these situations and found this aspect very convincing. But most of all it was the smooth sound, the lightweight and the easy handling that were decisive for our choice. The speech bandwidth is really striking, that is the power of this system."

Atlantic Productions has worked with Linex a lot lately; among others a tour with pianist Jan Vayne & the Gipsy Boys and the Lowlands Festival. Polhout: "We only get positive and great reactions. With the homage of the Utrecht soccer team last month we have stacked the Linex system, instead of rigging it up. Also here Linex worked flawlessly and beyond everybodies expectation!"

Prolight & Sound 2004

SOUND PROJECTS will introduce her revolutionary line-array concept Linex™ at the coming Frankfurter ProLight & Sound show. Linex™ is the sublimation of the Sigma series symmetrical true line-arrays.

Linex™ packs an 8 driver, horn loaded design into a remarkably compact and light cabinet. The Linex™ 3-way configuration provides highest full-range output to size ratio physically possible (as long as you include immaculate sound quality of course). Use of specialized carbon-fibre composites together with calculated bracing and other clever inner reinforcement structures, results in higher stiffness and yet a 30% lighter enclosure than a conventional wooden constructed cabinet. Furthermore no less than 12 handles could be integrated within the compact housing improving the handling of the system extremely.

In search of the best line-array physically possible, SOUND PROJECTS had already developed the patented HF Wave-shape-transformer™. This device resulted in the for line-array desired 90 degree horizontal dispersion, combined with tight, close to zero degrees, vertical dispersion.

Senior designer Frank Zaayer quotes: "If we wanted to go for perfection, the same quality of symmetrical, horizontal dispersion should be delivered by the complementing mid and low frequency drivers. One of the most difficult to obtain (yet neglected) performance criteria in a vertically configured stack of loudspeaker systems is stable horizontal imaging."

Several combinations of drivers, in just as many different cabinet shapes were developed and thoroughly tested. In order to obtain even horizontal coverage on both sides of the array, SOUND PROJECTS chose for a symmetrical design of driver positioning. In the mid section 4 specially developed 6,5 inch drivers with a neodymium magnet structure and a stiff, light cone are applied, loaded by diffraction slots. Placed above each other these slots create a seamless vertical ribbon of sound and hence all the line array criteria are met. Due to the small width of the slots, uninterrupted and symmetrical horizontal coverage is achieved. The two long excursion 12 inch woofers were selected for powerful bass performance and are mounted 'side-firing' to enhance the extreme compactness of the system.

The design team imposed several other strict demands to the cabinet, mainly related to ease of use, transport and rigging facilities.

The intuitive and convenient integrated heavy duty aluminium-alloy hardware provides up to 24 Linex™ cabinets to be flown, with a 10/1 safety factor.

Use of specialized carbon-fibre composites together with calculated bracing and other clever inner reinforcement structures, results in higher stiffness and yet a 30% lighter enclosure than a conventional wooden constructed cabinet. Furthermore no less than 12 handles could be integrated within the compact housing improving the handling of the system extremely.

In search of the best line-array physically possible, SOUND PROJECTS had already developed the patented HF Wave-shape-transformer™. This device resulted in the for line-array desired 90 degree horizontal dispersion, combined with tight, close to zero degrees, vertical dispersion.

Senior designer Frank Zaayer quotes: "If we wanted to go for perfection, the same quality of symmetrical, horizontal dispersion should be delivered by the complementing mid and low frequency drivers. One of the most difficult to obtain (yet neglected) performance criteria in a vertically configured stack of loudspeaker systems is stable horizontal imaging."

Several combinations of drivers, in just as many different cabinet shapes were developed and thoroughly tested. In order to obtain even horizontal coverage on both sides of the array, SOUND PROJECTS chose for a symmetrical design of driver positioning. In the mid section 4 specially developed 6,5 inch drivers with a neodymium magnet structure and a stiff, light cone are applied, loaded by diffraction slots. Placed above each other these slots create a seamless vertical ribbon of sound and hence all the line array criteria are met. Due to the small width of the slots, uninterrupted and symmetrical horizontal coverage is achieved. The two long excursion 12 inch woofers were selected for powerful bass performance and are mounted side-firing to enhance the extreme compactness of the system.

The design team imposed several other strict demands to the cabinet, mainly related to ease of use, transport and rigging facilities. The intuitive and convenient integrated heavy duty aluminium-alloy hardware provides up to 24 Linex™ cabinets to be flown, with a safety factor 10.